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Title: Amplifying equipment for teaching the hearing impaired, by A [Go to resource]
Description: Amplifying equipment for teaching the hearing impaired, by Amplivox, London, England, c. 1970 License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Temporal: 1970 Source: Science Museum Creator: Amplivox (maker) Identifier: 1987-549 Go to resource More Like this...
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